Lecture 10-Glycolysis Flashcards
(31 cards)
Where does glycolysis occur?
Cytoplasm
Write the overall equation of cellular respiration
C6H12O6 + 6O2–> 6CO2 +6H2O+Energy
What is the main goal of glycolysis?
Load electron carriers with potential
Why does respiration work in small steps?
To not waste energy
Name the 4 stages of cell respiration
- glycolysis
- pyruvate oxidation
- citric acid cycle
- oxidative phosphorylation
What are the three substrate-level phosphorylation stages?
- glycolysis
- pyruvate oxidation
- citric acid cycle
What is the oxidative phosphorylation stage?
electron transport chain
How many steps does glycolysis have?
10 redox reactions
How many steps does phase 1 of glycolysis have?
3
Write out the first three steps of glycolysis
Glucose—(ATP->ADP + P + ENERGY)–> SMTH—->SMTH—(ATP->ADP + P + ENERGY)—> SMTH
What is the outcome of phase 1 of glycolysis?
Added phosphate to glucose
Is the outcome of phase 1 of glycolysis endergonic or exergonic?
endergonic
What is the name for phase 2 of glycolysis?
cleavage
What steps are in phase 2 of glycolysis?
4 and 5
What is the outcome of phase 2 of glycolysis?
the 6 carbon sugar becomes 2 3-carbon molecules
What steps are in phase 3 of glycolysis?
6-10
What happens to NAD+ in phase 3 of glycolysis?
Added phosphate energy turns NAD+ to NADH
What happens to ADP from phase 1 in phase 3 of glycolysis?
Turns back into ATP
What is the final outcome of phase 3 of glycolysis?
2 pyruvate, 4 ATP, 2 NADH
Where does pyruvate oxidation happen?
matrix
What does pyruvate turn into?
Acetyl COA
What are the outputs of pyruvate?(3)
CO2, NADH, Acetyl COA
What is the input for pyruvate oxidation?
coenzyme A
What structure converts pyruvate to Acetyl COA?
pyruvate dehydrogenase complex
